Home / 8,345.56-11,516.70-4,989.12

Finding the Fourth Proportional to 8,345.56, 11,516.70 and 4,989.12

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Solution

The fourth proportional to 8,345.56, 11,516.70 and 4,989.12 is: 6,884.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.56 : 11,516.70 = 4,989.12 : x
  2. Step 2: Convert to fraction form
    8,345.56/11,516.70 = 4,989.12/x
  3. Step 3: Cross multiply
    8,345.56x = 11,516.70 × 4,989.12
  4. Step 4: Simplify right side
    8,345.56x = 57,458,198.30
  5. Step 5: Solve for x
    x = 57,458,198.30/8,345.56
  6. Step 6: Final answer
    x = 6,884.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.